<template>
	<view class="demo">
		<view class="red" @touchstart="onChange" @touchmove="onCha" :style="{right: `${left}rpx`}"></view>
	</view>
</template>

<script>
	export default {
		name: "cart",
		data() {
			return {
				oldClientX: 100,
				newClientX: 0,
				left: 0,
			}
		},
		methods: {
			onChange(e) {
				this.oldClientX = e.touches[0].clientX;
			},
			onCha() {
				this.newClientX = this.newClientX + 10;
				this.left = this.newClientX;
				if (this.left >= 350) return;
			}
		}
	}
</script>

<style scoped lang="scss">
	.demo {
		width: 100%;
		height: 100rpx;
		background-color: blue;
	}

	.red {
		width: 1000rpx;
		height: 100rpx;
		background-color: red;
		position: relative;
		right: 0;
	}
</style>
